Personal respiratory protection device having an exhalation valve



FIG. 1 is a perspective view of a personal respiratory protection device having an exhalation valve showing the new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is a top elevational view thereof.

FIG. 5 is a bottom elevational view thereof; and,

FIG. 6 is a right elevational view thereof. The left side is a mirror image of the right side. 

The ornamental design for a personal respiratory protection device having an exhalation valve, as shown and described. 